.contaniner{
    position: absolute;
    top:0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #333;
}
.nine{
    position: relative;
    margin: 20px auto;
    height: 300px;
    width: 300px;
}
.item{
    height: 80px;
    width: 80px;
    border-radius: 50%;
    background: #fff;
    color: #333;
    text-align: center;
}
.item.active{
    background: #f44336;
    color: #fff;
    -webkit-box-shadow: 0 0 16px rgba(44,154,219,.8),
    0 1px 2px rgba(0,0,0,.2);
    -moz-box-shadow: 0 0 16px rgba(44,154,219,.8),
    0 1px 2px rgba(0,0,0,.2);
    box-shadow: 0 0 16px rgba(44,154,219,.8),
    0 1px 2px rgba(0,0,0,.2);
}
.btn-start{
    display: block;
    height: 100%;
    border-radius: 50%;
    line-height: 80px;
    text-align: center;
    background: #5bc0de;
    color: #fff;
    text-decoration: none;
}
.btn-start:focus,
.btn-start:hover{
    background: #58c4ee;
}